Beilstein J. Nanotechnol.2019,10, 1211–1216, doi:10.3762/bjnano.10.120
reversenanoimprintlithography. The periodicity and the structural color were investigated through measuring reflection spectra. The structural color of the photonic crystal has a period of 90°. Distinctive colors spanning the entire visible spectrum can be seen when the crystal is rotated. In addition
, there is a blue-shift of the peak wavelength when the observation angle is increased. An equation for the observed wavelength as a function of the observation angle is proposed.
Keywords: observation angle; photonic crystal; reversenanoimprintlithography; structural color; visualized sensor
grating photonic crystal fabricated through reversenanoimprintlithography is investigated. The photonic crystal exhibited a wide range color spectrum from red to blue. Periodicity and angle-dependence of the reflection wavelengths are explored through measuring reflectance spectra. Based on the
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Figure 1:
The SEM images of the fabricated photonic crystal film. (a) Top view, (b) cross-sectional view.